Question

Which of the following statement is correct?

Increasing the temperature of a system at equilibrium always decreases the amount of product.

Increasing the temperature of a system at equilibrium always increases the amount of product.

Increasing the temperature of a system at equilibrium changes the value of the equilibrium constant.

Changing the temperature of a system at equilibrium does not affect the equilibrium position. e. none of these

Answer 1

Increasing temperature of an equilibrium system changes the equilibrium constant - is true

As the temperature increases or decreases the equilibrium shifts towards products or reactants side based on whether the reaction is exothermic or endothermic.

Ex, H2 (g)+ Cl2(g)< ----------> 2 HCl(g) + heat according to

le chaterlier's principles equilibrium constant

K= (HCl) 2/ (H2)(Cl2) if the heat is supplied to the system since the forward reaction is exothermic the equilibrium shifts towards reactants side hence the concentration of reactants increases and that of products decreases hence the equilibrium constant also changes.